call or click today. [ grunting ] >>trace: the illinois congressman jesse jackson, jr. has submitted a letter of resignation to speaker boehner with a confirmation of that letter by the speaker a couple weeks after the congressman won re-election for a ninth term despite the fact he has been on medical leave from congress since june while undergoing treatment for bipolar depression. and the feds are investigating him over misuse of campaign contributions and the house ethics committee has been investigating congressman jackson in connection with a 2008 bid for the senate seat previously held by the president. and now the news like for us in chicago. anyone surprised by this? >>reporter: not a surprise. representative jackson prioritizes his health and treatment for bipolar as the reason for stepping down but he acknowledges the federal investigations that have dogged him the he wrote as follows: during this journey i have made my share of mistakes, i am aware of the ongoing federal investigation into my activists. i am doing my best to address the situation responsibly,